Technology and the built world

Joel L. Dawson

Joel L. Dawson is an electrical engineer who works on radio-frequency integrated circuits for wireless and implanted medical devices, and an MIT associate professor who received a PECASE award.

Joel Alejandro Mejia is an engineering-education researcher who heads the Department of Engineering and Computing Education at the University of Cincinnati and received the 2025 Presidential Early Career Award for Scientists and Engineers.

Joel Moses

Joel Moses (1941–2022) was a computer scientist born in Mandatory Palestine who helped develop the Macsyma computer algebra system at MIT and rose to become its provost.

Joel S. Birnbaum

Joel S. Birnbaum is an American computer scientist and physicist who directed HP Labs and served as Hewlett-Packard's senior vice president for research and development.

Joel S. Engel

Joel S. Engel (born 1936) is an American electrical engineer who led the Bell Laboratories team that designed AMPS, the first cellular telephone system in the United States.

Joel Spira

Joel Spira (1927–2015) was an American physicist who invented the first solid-state electronic light dimmer and founded Lutron Electronics in 1961, holding more than 300 US patents.

Joel Yang

Joel K. W. Yang is a Singapore-based researcher in nanoplasmonics and nanolithography, a professor at SUTD known for plasmonic color printing at 100,000 dpi and the salty-developer technique.

Joerg Appenzeller

Joerg Appenzeller is a nanoelectronics researcher who holds the Epstein Professorship at Purdue University's Birck Nanotechnology Center, known for establishing how carbon nanotube transistors conduct current.

Joetsu LNG Terminal

The Joetsu LNG Terminal is an LNG import and regasification terminal at Naoetsu Port in Joetsu, Niigata Prefecture, Japan, owned by JERA and serving the adjacent Joetsu Thermal Power Station.

Joetsu thermal power station

Joetsu thermal power station (上越火力発電所) is the shared name of two LNG-fired combined-cycle power stations in Joetsu, Niigata Prefecture, Japan, built by Chubu and Tohoku Electric Power.

Joey Dunlop

Joey Dunlop (William Joseph Dunlop) was a Northern Irish motorcycle road racer who won a record 26 Isle of Man TT races between 1977 and 2000.

Jögel

Jögel is a Russian sports equipment and apparel brand founded in 2015 by Artur Movsesyan, and since 2023 the technical sponsor of all Russian national football teams, the first domestic brand to hold that status.

Johan Castberg Oil and Gas Field

Johan Castberg is an oil field in the Norwegian Barents Sea operated by Equinor, producing since March 2025 and the northernmost field on the Norwegian shelf.

Oct 10, 2026

Johan Håstad

Johan Torkel Håstad, born 1960, is a Swedish theoretical computer scientist at KTH Royal Institute of Technology, known for the switching lemma and optimal inapproximability results.

Johan Sverdrup (oil field)

Johan Sverdrup is a giant oil field on the Utsira High in the Norwegian North Sea, discovered in 2010 and operated by Equinor, producing since 2019.

Johan Sverdrup Oil and Gas Field

Johan Sverdrup is a giant oil field in the central North Sea, 160 kilometers west of Stavanger, operated by Equinor and producing about one third of Norway's oil.

Johan Sverdrup Oil Pipeline

The Johan Sverdrup Oil Pipeline is a 283-kilometer crude oil pipeline in the North Sea connecting the Johan Sverdrup field to the Mongstad terminal near Bergen, Norway, in service since 2019.

Johann W. Kolar

Johann W. Kolar is an Austrian-Swiss electrical engineer and ETH Zurich professor emeritus, best known for heading the Power Electronic Systems Laboratory and inventing the Vienna Rectifier.

Johanna Este Oil and Gas Field

Johanna Este is an oil field in Ecuador's Sucumbíos province, discovered in 2015 and operated by Andes Petroleum, producing over 10,000 barrels per day by 2016.

Johanna Rosén

Johanna Rosén is a Swedish materials physicist and professor at Linköping University working on 2D materials, including MXenes and boridene, for energy storage and water purification.

Johannes Gutenberg

Johannes Gutenberg, born Johannes Gensfleisch zur Laden zum Gutenberg, was a German printer from Mainz who developed movable type printing in Europe and printed the Gutenberg Bible.

Johannes Moe

Johannes Moe (1926–2023) was a Norwegian structural and shipbuilding engineer, professor of shipbuilding and rector at the Norwegian Institute of Technology, and managing director of SINTEF from 1977 to 1989.

Johannesburg Park Station

Johannesburg Park Station, commonly called Park Station, is the principal railway station of Johannesburg, South Africa, serving Metrorail commuter, Shosholoza Meyl long-distance, and Gautrain services.

Johannesburg water supply system

The Johannesburg water supply system is the bulk infrastructure delivering water to Johannesburg and Gauteng, anchored on the Vaal River and run by Rand Water, established in 1903.

John A. Chapman

John A. Chapman, also known as John Allan Chapman, was a US Air Force combat controller posthumously awarded the Medal of Honor in 2018 for the Battle of Takur Ghar.

John A. Focht Jr.

John A. Focht Jr., born John Arnold Focht Jr. (1923–2010), was a Houston geotechnical engineer who led McClelland Engineers, designed Texas dams, and served as ASCE president.

John A. Herbst

John A. Herbst, also known as John Arthur Herbst, was an American mineral processing engineer at the University of Utah, elected to the National Academy of Engineering in 1992.

John A. Hrones

John Anthony Hrones (1912–2000) was an American mechanical engineer and engineering-education leader, elected to the National Academy of Engineering in 1975 as a pioneer in automatic control.

John A. Jansen

John A. Jansen, also known as J.A. Jansen, is a Dutch biomedical engineer and dentist known for research on implant surfaces, calcium phosphate cements, and synthetic bone substitutes at Radboud University Nijmegen.